Display device

ABSTRACT

A display device may comprise a display panel, a back cover including a first supporting unit which supports a rear surface of the display panel and a second supporting unit which extends from an edge of the first supporting unit to be bent in a vertical direction and is spaced apart from an edge of the display panel and a plate disposed between a front surface of the first supporting unit and the display panel and bonded to the first supporting unit at a position spaced apart from the second supporting unit.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No.16/164,617 filed on Oct. 18, 2018 which claims priority to Republic ofKorea Patent Application No. 10-2017-0142414 filed on Oct. 30, 2017 andRepublic of Korea Patent Application No. 10-2018-0068271 filed on Jun.14, 2018 with the Korean Intellectual Property Office, all of which arehereby incorporated herein by reference in their entirety.

BACKGROUND Field of Technology

The present disclosure relates to a display device, and moreparticularly, to a display device including a back cover having enhancedrigidity.

Description of the Related Art

Recently, as it enters an information era, a display field whichvisually expresses electrical information signals has been rapidlydeveloped and in response to this, various display devices havingexcellent performances such as thin-thickness, light weight, and lowpower consumption have been developed. An example of the display devicemay include a liquid crystal display device (LCD), a field emissiondisplay device (FED), an electro-wetting display device (EWD), and anorganic light emitting display device (OLED).

Such display devices include a display panel which displays images, aback cover which accommodates the display panel and forms an outerappearance of the display device, a printed circuit board whichtransmits a data signal and a driving control signal input from theoutside to the display panel, and a flexible printed circuit board (FPC)which is disposed between the display panel and the printed circuitboard to electrically connect the display panel and the printed circuitboard to each other.

In the meantime, in order to support the display panel and enhance therigidity of the display device, typical display devices further includea separate reinforcing member and a middle cabinet.

However, the separate reinforcing member and the middle cabinet maycause a problem in that the number of components which configure thedisplay device is increased, a cost and a manufacturing process areincreased, and an assembly becomes complex.

SUMMARY

An object to be achieved by the present disclosure is to provide adisplay device in which the number of entire components of the displaydevice is reduced by omitting a reinforcing member and a middle cabinetand a cost, a manufacturing process, and an assembly are simplified.

Another object to be achieved by the present disclosure is to provide adisplay device which enhances a rigidity of the display device andimproves a heat dissipation performance of a display device even thoughthe reinforcing member and the middle cabinet are omitted.

Still another object to the achieved by the present disclosure is toprovide a display device which improves an exterior design of a displaydevice by planarizing an exterior appearance of a back cover.

An object to be achieved by the present disclosure is to provide adisplay device which improves a design of a back cover to avoidinterference of circuit components disposed in a display panel.

According to an aspect of the present disclosure, a display device mayinclude a display panel, a back cover including a first supporting unitwhich supports a rear surface of the display panel and a secondsupporting unit which extends from an edge of the first supporting unitto be bent in a vertical direction and is spaced apart from an edge ofthe display panel, and a plate disposed between a front surface of thefirst supporting unit and the display panel and bonded to the firstsupporting unit at a position spaced apart from the second supportingunit. Therefore, the display device according to the aspect of thepresent disclosure includes a plate including a core layer and a metallayer between a display panel and a back cover so that the rigidity ofthe display device may be enhanced even though the middle cabinet andthe reinforcing member are not provided.

According to another aspect of the present disclosure, a display devicemay include a display panel in which a plurality of pixels are disposed,a printed circuit board bonded to a rear surface of the display panel, aback cover including a first supporting unit which supports a rearsurface of the display panel and a second supporting unit which extendsfrom an end of the first supporting unit to be bent in a verticaldirection and spaced apart from an edge of the display panel, and aplate between the display panel and the back cover, in which the plateincludes a groove formed in a position corresponding to an area wherethe printed circuit board is disposed. Therefore, in the display deviceaccording to another aspect of the present disclosure, a partial area ofthe plate corresponding to the printed circuit board is removed to forma groove and the printed circuit board is disposed in the groove so thata shape of the back cover does not need to be changed while enhancingthe rigidity of the display device, thereby suppressing the degradationof the design quality of the display device.

According to the present disclosure, a core layer which is formed of aplastic resin and a metal layer made of the same material as a backcover are disposed between a display panel and the back cover to omit areinforcing member and a middle cabinet, thereby reducing the number ofentire components of the display device and simplifying a cost, amanufacturing process, and an assembly.

According to the present disclosure, a part of a plate is removed froman area corresponding to an area where a printed circuit board isdisposed to form a groove which is a circuit evasion area so that thereis no need to change an exterior appearance of the back cover, therebysuppressing the degradation of an exterior design of the display device.

The effects according to the present disclosure are not limited by thecontents exemplified above, and more various effects are included in thespecification.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other aspects, features and other advantages of thepresent disclosure will be more clearly understood from the followingdetailed description taken in conjunction with the accompanyingdrawings, in which:

FIG. 1 is a perspective view schematically illustrating a display deviceaccording to an exemplary embodiment of the present disclosure;

FIGS. 2A to 2F are cross-sectional views schematically illustratingseveral examples of a display device taken along the line II-II′ of FIG.1 according to an embodiment of the present disclosure;

FIG. 3 is a cross-sectional view schematically illustrating a displaydevice taken along the line of FIG. 1 according to an embodiment of thepresent disclosure; and

FIGS. 4A to 4B are cross-sectional views schematically illustrating acomparative example of a display device taken along the line of FIG. 1according to an embodiment of the present disclosure.

DETAILED DESCRIPTION

Advantages and characteristics of the present disclosure and a method ofachieving the advantages and characteristics will be clear by referringto the embodiments described below in detail together with theaccompanying drawings. However, the present disclosure is not limited tothe embodiment disclosed herein but will be implemented in variousforms. The embodiments are provided by way of example only so that aperson of ordinary skilled in the art can fully understand thedisclosures of the present disclosure and the scope of the presentdisclosure. Therefore, the present disclosure will be defined only bythe scope of the appended claims.

The shapes, sizes, ratios, angles, numbers, and the like illustrated inthe accompanying drawings for describing the various embodiments of thepresent disclosure are merely examples, and the present disclosure isnot limited thereto. Like reference numerals generally denote likeelements throughout the specification. Further, in the followingdescription of the present disclosure, a detailed explanation of knownrelated technologies may be omitted to avoid unnecessarily obscuring thesubject matter of the present disclosure. The terms such as “including,”“having,” and “comprising” used herein are generally intended to allowother components to be added unless the terms are used with the term“only”. Any references to singular may include plural unless expresslystated otherwise.

Components are interpreted to include an ordinary error range even ifnot expressly stated.

When the position relation between two parts is described using theterms such as “on”, “above”, “below”, and “next”, one or more parts maybe positioned between the two parts unless the terms are used with theterm “immediately” or “directly”. It is to be understood that an elementor layer is referred to as being “on” another element or layer,including either intervening layers or other elements directly on or inbetween. When an element is described as being “coupled” or “connected”to another element, the element may be directly coupled or connected tothe other element. However, it should be understood that other elementsmay be “interposed” between the two elements, or each element may be“coupled” or “connected” through another element.

Although the terms “first,” “second,” and the like are used fordescribing various components, these components are not confined bythese terms. These terms are merely used for distinguishing onecomponent from the other components. Therefore, a first component to bementioned below may be a second component in a technical concept of thepresent disclosure.

Like reference numerals refer to like elements throughout thespecification.

The sizes and thicknesses of the individual components shown in thedrawings are shown merely for convenience of explanation and the presentdisclosure is not necessarily limited to the size and thickness of thecomponents shown in the drawings.

Each of the features of the various embodiments of the presentdisclosure can be combined with each other partly or entirely. Thefeatures of the various embodiments can be technically interlocked anddriven as well. The features of the various embodiments can be practicedindependently or in conjunction with each other.

Hereinafter, the present disclosure will be described with reference tothe accompanying drawings.

FIG. 1 is a perspective view schematically illustrating a display deviceaccording to an exemplary embodiment of the present disclosure.

Referring to FIG. 1 , a display device 100 according to an exemplaryembodiment of the present disclosure includes a display panel 110 and aback cover 120 which supports a rear surface of the display panel 110and forms an exterior appearance of the display device 100.

The display panel 110 includes a display area A/A where images aredisplayed and a non-display area N/A which is disposed to enclose thedisplay area A/A

In the display area A/A of the display panel 110, a plurality of gatelines (not illustrated) and a plurality of data lines (not illustrated)are disposed and a plurality of pixels P which displays images by a gatesignal and a data signal transmitted through the plurality of gate linesand the plurality of data lines is provided.

In the non-display area N/A of the display panel 110, a gate drivingcircuit (not illustrated) which applies a gate signal to the gate linesdisposed in the display area A/A and a data driving circuit whichapplies a data signal to the data lines disposed in the display area A/Aare disposed.

The gate driving circuit is disposed in the non-display area N/A whichis disposed on both sides of the display area A/A in a first directionX. The gate driving circuit may be connected to a bonding pad of thedisplay panel 110 by a tape automated bonding (TAB) manner, a chip onglass (COG), or a chip on film (COF) manner or may be directly disposedon the display panel 110 by a gate in panel (GIP) manner.

The data driving circuit is disposed on any one of sides of the displayarea A/A in a second direction Y which is different from the firstdirection X and may be disposed as a driving circuit chip on a base filmof a flexible printed circuit board. That is, the data driving circuitmay be disposed by a chip of film (COF) manner. Even though it isdescribed that the data driving circuit is disposed by the chip on filmmanner in the exemplary embodiment of the present disclosure, it is notlimited thereto and the data driving circuit may be disposed by a tapeautomated bonding (TAB) manner or a chip on glass (COG) manner.

The back cover 120 supports a rear surface of the display panel 110while accommodating the display panel 110. In this case, a height of aside supporting unit which forms a side of the back cover 120 may behigher than a height of a side of the display panel 110. Further, theback cover 120 according to the exemplary embodiment of the presentdisclosure may have a hemming structure in which a side edge is curvedtoward an inside direction which is a direction where the display panel110 is disposed or an outside direction in order to protect the displaypanel 110 and enhance a rigidity of the display device 100. A detailedstructure of the back cover 120 will be described in more detail withreference to FIGS. 2A to 2F.

In the meantime, the display panel 110 according to the exemplaryembodiment of the present disclosure may be any one of various displaypanels such as an organic light emitting display panel, a liquid crystaldisplay panel, a field emission display panel, and an electro-wettingdisplay panel. Hereinafter, it will be described that the display panel110 according to the exemplary embodiment of the present disclosure isan organic light emitting display panel as an example.

A normal display device includes a reinforcing member which enhances therigidity of the display device and a rectangular frame-shaped middlecabinet to enclose side edges of the display panel, between the displaypanel and the back cover. In the case of the reinforcing member, whenthe printed circuit board is disposed to be tilted to the rear surfaceof the display panel, in order to avoid the printed circuit board, ashape of the back cover needs to be changed. In this case, the exteriorcharacteristic of the display device is deteriorated and inconvenienceof the user may be caused. Further, the middle cabinet has an advantagein that the middle cabinet is disposed to enclose the display panel tosuppress a damage of the display panel due to an external impact, butthe number of components which configure the display device isundesirably increased. Therefore, in the display device according to theexemplary embodiment of the present disclosure, even though the middlecabinet and the reinforcing member are omitted, the rigidity of thedisplay device may be enforced and an exterior design characteristic ofthe display device may be improved. To this end, the display device 100according to the exemplary embodiment of the present disclosure mayfurther include a plate 130 which improves a shape of the back cover 120and is disposed between the display panel 110 and the back cover 120. Ashape of the back cover and the plate described above will be describedin more detail with reference to FIGS. 2A to 2F.

FIGS. 2A to 2F are cross-sectional views schematically illustratingseveral examples of a display device taken along the line II-II′ of FIG.1 . More specifically, FIGS. 2A to 2F are cross-sectional viewsillustrating a structure of a non-display area of a display device takenalong the line II-II′ of FIG. 1 .

Referring to FIGS. 2A to 2F, the display device 100 according to theexemplary embodiment of the present disclosure includes a display panel110, a back cover 120, and a plate 130.

The display panel 110 includes a display area A/A where a plurality ofpixels is disposed to display images and a non-display area N/A disposedat an outer periphery of the display area AA where a driving element fordriving the plurality of pixels is disposed.

In the display area A/A of the display panel 110, the plurality ofpixels is disposed and each pixel may be an organic light emittingdiode. Even though not illustrated, in each pixel, a switchingtransistor, a driving transistor, and at least one capacitor may befurther disposed to drive the organic light emitting diode. The organiclight emitting diode includes a first electrode which is supplied with acurrent from a driving transistor (not illustrated) disposed for everypixel, a second electrode corresponding to the first electrode, and alight emitting layer disposed between the first electrode and the secondelectrode. In the organic light emitting diode, when holes are injectedfrom the first electrode to the light emitting layer and electrons areinjected from the second electrode to the light emitting layer, theholes and electrons are coupled to each other in the light emittinglayer and excitons are formed by the coupling to emit light.

A polarizing film 111 is disposed on a front surface of the displaypanel 110.

A sealing member 112 is disposed on the sides of the display panel 110to suppress light leakage that light emitted from each pixel is emittedthrough the sides. In this case, the sealing member 112 may be formed ofa polymer material containing a black pigment to absorb light emittedfrom the pixel arrangement so that light emitted through the sides ofthe display panel 110 is not seen.

An encapsulation member 113 may be disposed on a rear surface of thedisplay panel 110. When the organic light emitting diode is exposed tothe moisture or oxygen, the pixel may be deteriorated. Therefore, theencapsulation member 113 is disposed to suppress the deterioration ofthe pixel.

As illustrated in FIG. 2A, the back cover 120 includes a firstsupporting unit 121 which supports a rear surface of the display panel110 and a second supporting unit 122 which extends to be bent in avertical direction from the first supporting unit 121 and is spacedapart from an edge of the display panel 110. The back cover 120 may beformed of a metal material such as aluminum, aluminum alloy, stainlesssteel, or electro galvanized steel. In the exemplary embodiment of thepresent disclosure, it is described that the back cover 120 is formed ofa metal material such as aluminum, aluminum alloy, stainless steel, orelectro galvanized steel, but it is not limited thereto. Therefore, aslong as the second supporting unit 122 of the back cover 120 can be bentwith a predetermined curvature, any other material in addition to theabove-mentioned material may be also used.

The plate 130 is disposed between a rear surface of the display panel110 and a front surface of the first supporting unit 121 of the backcover 120. The plate 130 may include a core layer 131 disposed on afront surface of the first supporting unit 121 and a metal layer 132disposed on the core layer 131 and the display panel 110. Therefore, thedisplay device 100 according to the exemplary embodiment of the presentdisclosure includes the plate 130 formed by laminating the core layer131 and the metal layer 132 between the display panel 110 and the backcover 120 so that the rigidity of the overall back cover 120 isimproved. Further, the second supporting unit 122 of the back cover 120is freely bent so that a physical impact from the outside may beabsorbed while improving an exterior appearance of the edge of thedisplay device 100.

The core layer 131 may include a plastic resin and as the plastic resin,engineering plastic resin such as polyester resin, polyimide resin, orepoxy resin may be used. Further, the core layer 131 may include any oneor more of a carbon fiber, a silicon carbide fiber, an aramid fiber, anda boron fiber. The core layer 131 is formed by combining any one or moreof a carbon fiber, a silicon carbide fiber, an aramid fiber, and a boronfiber with plastic resin so that when the plastic resin is cured, themetal layer 132 and the first supporting unit 121 are coupled to eachother. That is, the core layer 131 has adhesiveness. Further, the corelayer 131 is formed by combining any one or more of a carbon fiber, asilicon carbide fiber, an aramid fiber, and a boron fiber with plasticresin so that the elasticity is increased and the strength is increasedby the fibers which are combined with the plastic resin.

A thickness of the core layer 131 may be greater than the thicknesses ofthe first supporting unit 121 of the back cover 120 and the metal layer132. Generally, the plastic resin which forms the core layer 131 ischeaper than the metal material which forms the first supporting unit121 and the metal layer 132. Therefore, by making the thickness of thecore layer 131 greater than the thicknesses of the first supporting unit121 of the back cover 120 and the metal layer 132, the rigidity of thedisplay device 100 may be enhanced at a lower price.

The metal layer 132 may be formed of the same material as the back cover120, such as aluminum, aluminum alloy, stainless steel, or electrogalvanized steel. As described above, the metal layer 132 is disposed tobe adjacent to the display panel 110 so that high heat generated fromthe display panel 110 may be dissipated. Further, the back cover 120 andthe metal layer 132 are formed of the same metal material so that theheat generated in the display panel 110 may be rapidly and efficientlydissipated.

The plate 130 may be formed on the first supporting unit 121 of the backcover 120 by various methods.

For example, the core layer 131 is applied only on the first supportingunit 121 excepting the area of the second supporting unit 122, on thefront surface of the flat panel-shaped back cover 120 and the metallayer 132 is formed on the core layer 131 to bond the back cover 120 andthe plate 130. In this case, a jig which occupies a space is provided inadvance so that the core layer 131 is not applied in the area of thesecond supporting unit 122 of the back cover 120 and the core layer 131is applied only in the area of the first supporting unit 121 which isthe remaining area and the metal layer 132 is formed on the core layer131. Therefore, by doing this, the plate 130 may be bonded to the backcover 120.

As another example, after bonding the metal layer 132 by applying thecore layer 131 on the entire area of the back cover 120, the core layer131 and the metal layer 132 of the plate 130 are cut only in the area ofthe second supporting unit 122 and the plate 130 may be provided only inthe area of the first supporting unit 121.

As the method for forming the plate 130 including the core layer 131 andthe metal layer 132 on the back cover 120, various methods may be usedin addition to the above-described method. When the operation of formingthe plate 130 is completed, the second supporting unit 122 of the backcover 120 is bent and the display panel 110 is seated so that thedisplay device 100 according to the exemplary embodiment of the presentdisclosure will be completed.

Further, the adhesive member 135 is provided between the rear surface ofthe display panel 110 and the plate 130 so that the display panel 110and the plate 130 are firmly coupled, thereby suppressing the displaypanel 110 from being slipped.

As illustrated in FIG. 2B, the back cover 120 of the display device 100according to the exemplary embodiment of the present disclosure mayfurther include a bent edge 123 which is bent from an end of the secondsupporting unit 122 toward the edge of the display panel 110. That is,the back cover 120 may have a hemming structure in which the end of thesecond supporting unit 122 is bent toward the inward direction where thedisplay panel 110 is disposed. As described above, the back cover 120 ofthe display device 100 according to the exemplary embodiment of thepresent disclosure further includes a bent edge 123 extending from theend of the second supporting unit 122, so that the side of the displaydevice 100 has a double laminated structure and the rigidity is furtherincreased. Therefore, in the display device 100 according to theexemplary embodiment of the present disclosure, even though a physicalimpact is applied to the side, the impact may be relieved.

In the meantime, as illustrated in FIG. 2B, a space 124 may be providedbetween the second supporting unit 122 and the bent edge 123. The space124 is provided as described above, so that when the physical impact isapplied to the second supporting unit 122, the second supporting unit122 may be deformed through the space 124 and the deformation maysuppress the bent edge 123 from colliding with the edge of the displaypanel 110.

Further, when the display device 100 collides with other objects whilebeing moved, the impact and the vibration which may be applied to thedisplay device 100 may be relieved by the space 124 between the secondsupporting unit 122 and the bent edge 123.

As illustrated in FIG. 2C, the display device 100 according to theexemplary embodiment of the present disclosure may further include anabsorbing member 140. The absorbing member 140 may be disposed betweenthe plate 130 and the second supporting unit 122 to be in contact withthe first supporting unit 121 of the back cover 120 and the rear surfaceof the display panel 110. As described above, the display device 100according to the exemplary embodiment of the present disclosure furtherincludes the absorbing member 140 so that when moisture enters betweenthe edge of the display panel 110 and the bent edge 123 by a cleaningagent or a spray, the absorbing member 140 absorbs the moisture first.Therefore, the damage of various circuit components disposed on the rearsurface of the display panel 110 may be avoided.

Further, as illustrated in FIG. 2D, the plate 130 of the display device100 according to the exemplary embodiment of the present disclosure mayfurther include a supporting edge 132 a which is formed by verticallybending both edges of the metal layer 132 to be supported by the frontsurface of the first supporting unit 121 while enclosing the side of thecore layer 131. That is, in FIGS. 2B and 2C, the core layer 131 and themetal layer 132 are disposed to have the same width, but in FIG. 2D, themetal layer 132 is disposed to have a larger width than that of the corelayer 131 so that the metal layer 132 may enclose the side of the corelayer 131.

In the display device 100 according to the exemplary embodiment of thepresent disclosure, a supporting force which supports in the verticaldirection in which the display panel 110 and the back cover 120 arelaminated is increased due to the supporting edge 132. Therefore, eventhough the physical impact is applied to the rear surface of the backcover 120, the deformation of the back cover 120 is reduced and thedeformation or damage of the display panel 110 is also reduced.

Further, as illustrated in FIGS. 2E and 2F, the bent edge 123 of thedisplay device 100 according to the exemplary embodiment of the presentdisclosure may be bent at the end of the second supporting unit 122 tobe opposite to a direction in which the display panel 110 is disposed.That is, as illustrated in FIGS. 2E and 2F, the bent edge 123 may bebent to the outward direction of the display panel 110 at the end of thesecond supporting unit 122.

That is, the bending direction of the bent edge 123 according to theexemplary embodiment illustrated in FIGS. 2E and 2F is opposite to thebending direction of FIGS. 2B to 2D. Therefore, when an impact load isapplied from the side to the display device 100, the bent edge 123 isdeformed first to absorb the impact. That is, in the exemplaryembodiment of FIGS. 2B to 2D, the second supporting unit 122 is locatedoutside the bent edge 123 so that the second supporting unit 122 mayhave scratches due to the physical impact so that the quality of theexterior appearance may be degraded. In contrast, in the exemplaryembodiment of FIGS. 2E and 2F, the bent edge 123 is provided in aposition which outwardly protrudes from the second supporting unit 122so that when the display device collides with an external object, thebent edge 123 collides first and then is deformed to be bent. Therefore,the frequency of scratches may be reduced.

Further, as illustrated in FIGS. 2E and 2F, even when the bent edge 123is bent to be opposite to an edge of the display panel 110, the space124 may be provided between the second supporting unit 122 and the bentedge 123. As described above, even though the bent edge 123 is bent tobe opposite to the edge of the display panel 110, the space 124 isprovided between the back cover 120 and the bent edge 123. Therefore,when the physical impact is applied to the bent edge 123, the bent edge123 is deformed through the space 124 so that the impact may berelieved.

Further, as illustrated in FIG. 2F, when the bent edge 123 is bent to beopposite to the edge of the display panel 110, the absorbing member 140which is attached to the rear surface of the display panel 110 and thefirst supporting unit 121 may be further provided between the plate 130and the second supporting unit 122. As described above, the absorbingmember 140 is further provided to absorb moisture entering between theedge of the display panel 110 and the second supporting unit 122 so thatdamages of various circuit components disposed on the rear surface ofthe display panel 110 may be avoided.

As described above, in the display device 100 according to the exemplaryembodiment of the present disclosure, the plate 130 formed of the corelayer 131 including a plastic resin and the metal layer 132 is bondedonto the first supporting unit 121 of the back cover 120 which supportsthe display panel 110. Therefore, even though the middle cabinet and thereinforcing member are omitted, the rigidity of the overall back cover120 is maintained. Further, the plate 130 and the second supporting unit122 of the back cover 120 are disposed to be spaced apart from eachother with a predetermined interval so that a performance of dissipatingheat generated from the display panel 110 in the space may be alsoprovided.

Further, in the display device 100 according to the exemplary embodimentof the present disclosure, the edge area of the back cover 120 excludinga center area where the display panel 110 is supported may be freelybent to improve an exterior appearance of the periphery of the displaydevice 100. Further, the display device 100 according to the exemplaryembodiment of the present disclosure includes a structure which absorbsa physical impact from the outside so that deformation and damages maybe suppressed.

In the meantime, in the display device 100 according to the exemplaryembodiment of the present disclosure, a structure of the plate 130disposed in the non-display area N/A which is disposed in any one sideof the display area A/A in the second direction Y may have a structurewhich avoids the interference with the printed circuit board disposed onthe rear surface of the display panel 110. Such a structure of the plate130 will be described in more detail with reference to FIG. 3 .

FIG. 3 is a cross-sectional view schematically illustrating a displaydevice taken along the line of FIG. 1 . FIGS. 4A and 4B arecross-sectional views schematically illustrating a comparative exampleof a display device taken along the line of FIG. 1 .

First, referring to FIG. 3 , in the display device 100 according to theexemplary embodiment of the present disclosure, a printed circuit board310 which is tilted to the rear surface of the display panel 110 to bebrought into close contact therewith is disposed in the non-display areaN/A of one edge of the display panel 110. The printed circuit board 310may be electrically connected to the display panel 110 by means of theflexible printed circuit board 320.

On the printed circuit board 310, driving elements 311 which apply adriving control signal to the display panel 110 are disposed. Theprinted circuit board 310 is attached to the rear surface of the displaypanel 110 by means of the adhesive member 340. The adhesive member 340may be a both sided adhesive tape or when the display panel 110 isformed of a metal foil, a rubber magnet may be used. In this case, theprinted circuit board 310 and the rubber magnet are adhered with eachother using the both sided adhesive tape. When the printed circuit board310 is attached to the rear surface of the display panel 110 using therubber magnet, there is an advantage in that when a failure is caused inthe printed circuit board 310 or the attachment of the printed circuitboard 310 is misaligned, the printed circuit board 310 may be easilydetached from the rear surface of the display panel 110 and thenreattached. The flexible printed circuit board 320 electrically connectsthe display panel 110 to the printed circuit board 310. The flexibleprinted circuit board 320 may include a base film 321 and a drivingcircuit chip 322. The base film 321 may be formed of polyimide resin orepoxy resin, or other known materials and may have flexibility. Thedriving circuit chip 322 outputs a control signal to control the drivingof the gate line or the data line disposed in the display panel 110.

The flexible printed circuit board 320 transmits a data signal or acontrol signal input from the printed circuit board 310 to the displaypanel 110. That is, the flexible printed circuit board 320 is disposedbetween the display panel 110 and the printed circuit board 310 toelectrically connect the display panel 110 to the printed circuit board310. More specifically, the flexible printed circuit board 320 bonds ananisotropic conductive film which is a thermosetting resin filmcontaining small conductive particles to one edge of the display panel110 and the printed circuit board 310 and then performs thermoscompression bonding to electrically connect one edge of the displaypanel 110 and the printed circuit board 310.

The plate 330 may include a core layer 331 which is in contact with theback cover 120, a metal layer 332 on the core layer 331, and a groove333 which is formed to correspond to the printed circuit board 310 whichis tilted toward the rear surface of the display panel 110 to be inclose contact therewith. Here, the core layer 331 and the metal layer332 have been described above with reference to FIGS. 2A to 2F, so thata detailed description of the core layer 331 and the metal layer 332will be omitted.

The groove 333 may be formed by removing a partial area of the plate 330corresponding to an area where the printed circuit board 310 and thedriving element 311 are disposed on the rear surface of the displaypanel 110. Further, a width W1 of the groove 333 may be formed withrespect to a width W2 of the printed circuit board 310. Morespecifically, the width W1 of the groove 333 may be larger than thewidth W2 of the printed circuit board 310. Therefore, the printedcircuit board 310 and the driving elements 311 disposed on the printedcircuit board 310 may be more stably disposed in the groove 333.

The groove 333 may be formed by removing a part of the core layer 331and the metal layer 332 corresponding to the position of the printedcircuit board 310 disposed on the rear surface of the display panel 110.In the meantime, in FIG. 3 , it is illustrated that the groove 333 isformed by removing a part of the core layer 331 and the metal layer 332,but it is not limited thereto and only the metal layer corresponding tothe position where the printed circuit board 310 is disposed may beremoved. Therefore, the printed circuit board 310 faces the core layer331 and the electrical interference of the driving elements 311 on theprinted circuit board 310 may be avoided.

In the meantime, referring to FIG. 3 , the display device 100 having thegroove 333 in which the printed circuit board 310 is avoided may includea plate end area PEA, a circuit evasion area CEA, and a plate wall areaPWA.

The plate end area PEA, as illustrated in FIGS. 4A and 4B, may be an endarea where the plate 330 is disposed when the circuit evasion area CEAis not formed. That is, when the circuit evasion area CEA and the platewall area PWA are not formed, the plate 330 may be disposed only to theplate end area PEA. However, the display device 100 according to theexemplary embodiment of the present disclosure is not formed only to theplate end area PEA, but may extend from the plate end area PEA to theplate wall area PWA.

The circuit evasion area CEA may correspond to an area where the groove333 is disposed on the plate 330. When the circuit evasion area CEA isnot formed, as illustrated in FIG. 4A, the plate is formed only to theplate end area PEA. Otherwise, in order to dispose the reinforcingmember for enhancing the rigidity of the display device, as illustratedin FIG. 4B, a shape of the back cover 120 is deformed to form thecircuit evasion area CEA in which the reinforcing member is disposed.However, as illustrated in FIG. 4B, when the circuit evasion area CEA isformed, the exterior appearance of the back cover 120 does not have aflat shape, so that a design quality of the display device may bedegraded. Further, as illustrated in FIG. 4A, when the reinforcingmember is not provided, the display panel or the printed circuit boardmay be damaged due to the external impact. However, in the displaydevice 100 according to the exemplary embodiment of the presentdisclosure, the circuit evasion area CEA is disposed by forming thegroove 333 on the plate 330 so that the exterior appearance of the backcover 120 does not need to be deformed. Therefore, the degradation ofthe exterior design quality of the display device 100 may be suppressed.

The plate wall area PWA is an area extending from the plate end areaPEA. As compared with FIGS. 4A and 4B, the plate wall area PWA isfurther disposed so that the rigidity of the display device 100according to the exemplary embodiment of the present disclosure may befurther enhanced.

The exemplary embodiments of the present disclosure can also bedescribed as follows:

According to an aspect of the present disclosure, a display device maycomprise a display panel, a back cover including a first supporting unitwhich supports a rear surface of the display panel and a secondsupporting unit which extends from an edge of the first supporting unitto be bent in a vertical direction and is spaced apart from an edge ofthe display panel and a plate disposed between a front surface of thefirst supporting unit and the display panel and bonded to the firstsupporting unit at a position spaced apart from the second supportingunit.

The plate may include a core layer disposed on the front surface of thefirst supporting unit and including a plastic resin and a metal layerdisposed between the core layer and the display panel and formed of thesame material as the back cover.

The core layer may be formed by combining any one or more of a carbonfiber, a silicon carbide fiber, an aramid fiber, and a boron fiber withthe plastic resin.

The display device may further comprise an adhesive member providedbetween the rear surface of the display panel and the plate.

The second supporting unit may include a bent edge which is bent fromthe end of the second supporting unit toward the edge of the displaypanel.

A space may be provided between the second supporting unit and the bentedge.

The display device may further include an absorbing member which isadhered to the rear surface of the display panel and the firstsupporting unit between the plate and the bent edge.

The plate may include a supporting edge which is formed by verticallybending both edges of the metal layer to enclose a side of the corelayer and is supported by the front surface of the first supportingunit.

The second supporting unit may include a bent edge which is bent fromthe end of the second supporting unit to be opposite to the edge of thedisplay panel.

According to an another aspect of the present disclosure, a displaydevice may comprise a display panel in which a plurality of pixels aredisposed, a printed circuit board bonded to a rear surface of thedisplay panel, a back cover including a first supporting unit whichsupports the rear surface of the display panel and a second supportingunit which extends from an end of the first supporting unit to be bentin a vertical direction and is spaced apart from an edge of the displaypanel and a plate between the display panel and the back cover, whereinthe plate includes a groove formed in a position corresponding to anarea where the printed circuit board is disposed.

The plate may include a core layer disposed on the front surface of thefirst supporting unit and including a plastic resin and a metal layerdisposed between the core layer and the display panel and formed of thesame material as the back cover.

The groove may be formed by removing a part of the core layer and themetal layer corresponding to the area where the printed circuit board isdisposed.

The printed circuit board may be disposed in the groove and may bedisposed to face the core layer.

A width of the groove may be larger than a width of the printed circuitboard.

The printed circuit board may be disposed to be tilted toward the rearsurface of the display panel.

The second supporting unit may include a bent edge which is bent fromthe end of the second supporting unit toward the edge of the displaypanel.

Although the aspects of the present disclosure have been described indetail with reference to the accompanying drawings, it is to beunderstood that the present disclosure is not limited to those describedaspects and various changes and modifications may be made withoutdeparting from the scope of the present disclosure. Therefore, theaspects disclosed in the present disclosure are not intended to limitthe technical scope of the present disclosure, but to illustrate them.Thus, the technical scope of the present disclosure is not limited bythese aspects. It should be understood that the above-described aspectsare merely illustrative in all aspects and not restrictive. The scope ofthe present disclosure should be construed only by the appended claims,and all technical features within the scope of equivalents should beconstrued as being included in the scope of the present disclosure.

What is claimed is:
 1. A display device, comprising: a display panel; aback cover including a first supporting unit which supports a rearsurface of the display panel and a second supporting unit which extendsfrom an edge of the first supporting unit to be bent in a verticaldirection and is spaced apart from an edge of the display panel; and aplate disposed between a front surface of the first supporting unit andthe display panel and bonded to the first supporting unit, wherein theplate includes a core layer disposed on the front surface of the firstsupporting unit and including a plastic resin, and wherein the corelayer is formed by combining at least one of: a carbon fiber, a siliconcarbide fiber, an aramid fiber, or a boron fiber with the plastic resin.2. The display device according to claim 1, wherein the plate furtherincludes a metal layer disposed between the core layer and the displaypanel and formed of a same material as the back cover.
 3. The displaydevice according to claim 1, further comprising: an adhesive memberprovided between the rear surface of the display panel and the plate. 4.The display device according to claim 1, wherein the second supportingunit includes a bent edge which is bent from an end of the secondsupporting unit toward an edge of the display panel.
 5. The displaydevice according to claim 4, wherein a space is provided between thesecond supporting unit and the bent edge.
 6. The display deviceaccording to claim 5, further comprising: an absorbing member which isadhered to the rear surface of the display panel and the firstsupporting unit between the plate and the bent edge.
 7. The displaydevice according to claim 2, wherein the plate includes a supportingedge which is formed by vertically bending both edges of the metal layerto enclose a side of the core layer and is supported by the frontsurface of the first supporting unit.
 8. The display device according toclaim 1, wherein the second supporting unit includes a bent edge whichis bent from an end of the second supporting unit to be opposite to anedge of the display panel.
 9. A display device, comprising: a displaypanel in which a plurality of pixels are disposed; a printed circuitboard bonded to a rear surface of the display panel; a back coverincluding a first supporting unit which supports a rear surface of thedisplay panel and a second supporting unit which extends from an end ofthe first supporting unit to be bent in a vertical direction and isspaced apart from an edge of the display panel; and a plate disposedbetween a front surface of the first supporting unit and the displaypanel and formed on at least a part of the front surface of the firstsupporting unit, wherein the first supporting unit includes a circuitevasion area formed in a position corresponding to an area where theprinted circuit board is disposed and protruding to form a space insidean opposite direction of the display panel, wherein the plate includes acore layer disposed on the front surface of the first supporting unitand including a plastic resin.
 10. The display device according to claim9, wherein the plate further includes a metal layer disposed between thecore layer and the display panel and formed of a same material as theback cover.
 11. The display device according to claim 9, wherein thecore layer is formed by combining at least one of: a carbon fiber, asilicon carbide fiber, an aramid fiber, or a boron fiber with theplastic resin.
 12. The display device according to claim 9, wherein awidth of the circuit evasion area is larger than a width of the printedcircuit board.
 13. The display device according to claim 9, wherein theprinted circuit board is disposed to be tilted toward the rear surfaceof the display panel.
 14. The display device according to claim 9,wherein the second supporting unit includes a bent edge which is bentfrom an end of the second supporting unit toward the edge of the displaypanel.